18913904

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19379}}^1$

素因数の和:19448

約数の個数: 20

約数和(自身を含む): 37248360

約数和(自身を除く): 18334456

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19379, 38758, 77516, 155032, 310064, 1182119, 2364238, 4728476, 9456952, 18913904]

約数ペア:

[(1, 18913904), (2, 9456952), (4, 4728476), (8, 2364238), (16, 1182119), (61, 310064), (122, 155032), (244, 77516), (488, 38758), (976, 19379)]